French-binding straightening and cementing machine



Nov. 20, 1934. SHERMAN AL 1,981,006

G STRAIGHTE NING AND CEMENTING MACHINE Filed April 21, 1932 72 //v VE/V THEE.

g M WW Patented Nov. 20, 1934 UNITED STATES FRENCH-BINDING STRAIGHTENING AND CEMEN TING MACHINE Fred S. Sherman, Somerville, and John Husler,

Saugus, Mass., assigncrs to United Shoe Machinery Corporation, Paterson, N. J., a corporation of New Jersey Application April 21, 1932, Serial No. 606,686

7 Claims. (C l- 1255) This invention relates to improvements in French binding machines, and the invention is herein illustrated as embodied in a machine for straightening a fabric French binding strip and applying a coating of cement to the margin of the leather to which the binding strip is attached and tothe binding strip, preparatory to folding the binding around the edge of the leather. The illustrated machine is of the type shown in Letters Patent of the United States No. 1,790,901, granted February 3, 1931, upon the application of John W. Cosgrove, deceased.

In the binding of the parts of an upper with a fabric strip in order to produce so-called French binding or a French edge, the fabric strip is secured to the outer face of the upper in a position wholly overlying the upper by means of a row of stitching located close to the margin of the leather. This binding strip is then rubbed out or straightened, a coating of cement is applied to the inner face of the upper material which, for simplicity, we shall assume to be leather, and to the face of the straightened binding strip which is to be folded over against the work, and then the cemented strip is folded over the edge of the leather and pressed into place to attach it to the inner face thereof. In applying cement simultaneously to the inner face of the upper and to the surface of the binding strip, difficulty is experienced because of the fact that the binding strip projects outwardly substantially at the level of the grain side of the leather, whereas the flesh side of the leather to be cemented is spaced a. substantial distance from the level of the fabric. This distance will vary in accordance with the thickness of the leather from approximately one thirty-second of an inch in the case of light kids to as much as three-sixteenths of an inch where heavy Scotch grain leathers are used, and especially in cases where a double thickness of leather is found such, for example, as at seams or where a reinforcing cuff is employed. In order to apply the cement effectively to the fabric binding strip, the latter must be bent down to the level of the flesh side of the leather to bring it into contact with the cement applying member. One successful solution of this difiiculty is found in the invention set forth in the Cosgrove patent, No. 1,790,901, to which reference has been made above.

It is an object of this invention to provide a still further improved machine for French binding work in which the fabric binding strip will be held in the desired relation to the leather upper under varying conditions, as cement is applied, and without danger of inadvertently transferring cement to the presser and consequently to the work.

With this in view, an important feature of the present invention resides in the provision of a presser member which, as illustrated, is adjustably mounted on a self-adjusting spring-pressed slide and is providedwith a stop foot to prevent contact of the presser member with the cement roll. This construction automatically adapts itself to varying thicknesses of leather without marked change in pressure and provides a ready means for varying the pressure upon the presser foot which may be required by differences in the character of the work. At the same time there is little or no danger of the transference of cement from the applying roll to the presser member and the consequent ultimate soiling of the work.

In the drawing,

Fig. 1 is an end elevation of the operating parts of the machine;

Fig. 2 is a front elevation of these same parts;

Fig. 3 is a front elevation much enlarged with the Wiper disk or straightening member omitted;

and

Figs. '4 and 5 are detail views'of the slidable mounting for the presser member.

As in'the machine of the Cosgrove patent, the work is'zpositioned' in the machine with the flesh side of the leather 8 facing downwardly so that cement is'applied thereto by a cement roll 10 dipping in a receptacle 12 as the binding strip 14' is straightened by a wiper disk 16 and is held in contact with the cement roll by a presser member 18. Feeding of the work is accomplished, by. a feed roll 20 in cooperation with a toothed section 22 of: the cement roll. The feed roll 20 cooperates with the grain side of the leather upper end, as in the patented machine, is supported on an arm 24 in which there is a shaft 26 for positively driving the feed roll. The wiper disk 16 is supported upon an arm 28 and driven by power supplied through a shaft The cement roll 10 is a built-up roll made of sections providing a series of transverse grooves 32 which terminate just short of the sides of the roll and the outer, sections are formed to provide circumferential grooves 34 by means of which cement may be prevented from spreading over the ends of the cement roll. The receptacle 12 is formed in an outwardly extending portion 36 of the frame of the machine upon which are mounted a scraper 38 to control the quantity of cement delivered to the work, and an adjustable edge gage 40. hook-like portion 42 for engagement with the edge of the leather and a thin supporting plate This gage comprises a I 5) formed upon a slide 56 which is receivedwithin a slot 58 milled in a horseshoe-shaped bracket 60 (Fig. 2) attached by screws 62 to,

the arm as which carries the feed roll. The slide 56 is urged downwardly by a helical spring 64 positioned in the upper end of the slot and adjustably tensioned by an abutment screw '66 locked in a plate 68 which is used for holding in position the inturned upper end of a cover '70 by means of which the slide 56 is retained in the slot 58. In order that the curved end 50 of the presser 18 may never come in contact with the cement on thecement roll, the slide 56 is provided with a stop foot 72 secured in the arm 54 of the slide and positioned so that its pointed lower end bears upon the machined surface 46 adjacent to the cement roll.

In using the machine, the presser foot 18 will be set in the desired relation to the stop foot 72 by means of the slot-and-screw adjustment 52 and then the tension of the spring 64 will be determined by adjusting the screw 66, in accordance with the characteristics of the work to be treated. It will be evident that variations in the thickness of a piece of work will not cause marked variations in the tension of this spring. In general, the stiffer the fabric binding strip 14 and the thicker the leather 8 the greater will be the tension of the spring 64. By this provision of a sliding support for the presser-foot it is possible to secure just the right tension upon the fabric binding strip which may be needed and still to avoid picking up cement on the presser. The work will be presented to the machine with the edge of the leather caught under the hooked portion 42 of the edge gage and supported on the plate 44 thereof, and the incoming end of the binding strip will be thumbed out and presented under the wiper disk 16, the work being carried forward until it is engaged by the feed roll 20 cooperating with the feed disk 22 of the cement roll, after which the work will be fed along substantially automatically, requiring only that the operator shall hold it against the edge gage. During this forward feeding movement the binding strip will be rubbed out or straightened, and cement will be applied to the under side of the leather and to the face of the fabric binding strip.

Having thus described our invention, what we claim as new and desire to secure by Letters Patent of the United States is:

1. In a machine for cementing French binding work in which a fabric binding strip attached to the grain side of the leather is to be straightened to extend outwardly at the level of the grain side, means for applying cement to the 1 flesh side of the leather and tothe adjacent face of the outstanding fabric strip, a straightening tool to wipe the fabric binding strip into an outstanding position, and a substantially rigid presser'member mounted to yield bodily and urged against the strip for holding the outstanding fabric binding strip in cooperative relation to the applying means.

2. In a machine for cementing French binding work in which a fabric binding strip attached to the grain side of the leather has been straightened to extend outwardly at the level of the grain side, means for applying cement to the flesh side of the leather and to the adjacent face of the outstanding fabric strip, a movable presser member for bending the outstanding fabric binding strip down to the level of' the flesh side of the leather to bring it into contact with the cement-applying means, and a coiled spring urging said presser member toward the binding stip.

3. In a machine for cementing French binding work, cement applying means, a supporting member, a straightening tool, means for holding an outwardly extending binding strip in cooperative relation to the applying means comprising a presser member slidable in said supporting member, and means for limiting the movement of the presser member toward the cement applying means.

4. In a French binding treating machine, a feeding device cooperating with, a piece of work to which an outstanding binding strip is attached, a slidably mounted presser member, and a helical spring acting on said'presser member to hold the binding strip at the" level of the face of the work opposite to that face to which the strip is attached.

5. In a machine for cementing French binding work, a cement applying roll, a cooperating presser roll for holding a piece of work in contact therewith, a spring-controlled, slidably mounted, presser member positioned alongside said presser roll for engagement with an outstanding binding strip on the work, and means for preventing said presser member from c0n tacting with the cement upon the cement roll when there is no work in the machine.

6. In a machine for cementing French binding work, a cement applying roll positioned beneath a piece of work, a stop surface in predetermined relation to the top of the cement roll, a presser roll for holding the work against the cement roll, a presser member for holding an outstanding binding strip on the Work in' contact with the cement roll, a support for said presser member slidably mounted in the machine, a spring cooperating with said support to urge the presser member into contact with the binding strip, and a foot on said slide adapted to engage said stop surface to prevent contact of the presser member with the cement roll.

'7. In a machine for straightening and cementing French binding work, a cement roll, a stop having a surface in predetermined relation to the top of the cement roll, a wiper disk for straightening a binding strip, a feed roll behind the wiper disk cooperating with a piece of work to which the binding strip is attached, a slide, a spring urging said slide downwardly, a presser member adjustably secured to said slide and adapted to engage the upstanding binding strip to hold it in contact with the cement roll, and a foot on said slide positioned for engagement with said stop surface thereby to prevent contact of the presser member with the cement roll when there is no work in the machine. I

' FRED S. SHERMAN.

JOHN HUSLER. 

